The Mastic Doctor team standing beside their branded vans outside an office building
Kent · England

Fire stopping in Lenham Heath

Fire stopping in Lenham Heath, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.

  • Improvised or mixed-product fire seals
  • Non-fire-rated filler around services
  • Unsealed penetrations discovered above suspended ceilings
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
CHAS accredited
£5m PL insurance

Fire stopping for businesses in Lenham Heath

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

About our fire stopping in Lenham Heath

On a fit-out or refurbishment, we follow the services contractors floor by floor. To price a package, phone 01277 525 020 or send details through our quote form with the schedule or marked-up drawings. Tell us what records you need and we’ll confirm with the quote. Site teams most often ask us about snag lists that include open service penetrations and unsealed openings around new pipes and cables, across small duct penetrations where the tested detail allows, service gaps in risers and cable penetrations. Looking for mastic applicators who cover Lenham Heath? We have been sealing commercial buildings since 2005, with CSCS-carded applicators.

Barn and farm-building conversions near places like Lenham Heath often combine new partitions with old walls. Where a pipe or cable passes through a fire-resisting wall, the seal must match the tested detail: product, substrate, gap and depth.

We stand behind the joints we seal: 12 months, guaranteed. That covers our preparation and application, and we come back if anything isn’t right.

Place
Lenham Heath (ME17)
Region
Kent
Cover
A 12-month guarantee
Quote
Quoted before any work starts
Call
01277 525 020
Last updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Building owners, agents and FMs in Lenham Heath

Hotels, schools, healthcare sites, offices and retail units book us directly too. We plan around the way the building is used, so the building keeps working while we do.

Building owners and managing agents use us on everything from one building to a spread of sites. One quote can cover more than one site, which keeps the paperwork simple.

Cost factors for service penetrations

The price varies from site to site. It mainly depends on:

  • How much there is to seal
  • Phasing around occupants
  • The product specified
  • Whether old sealant has to be cut out first

Quantities, awkward access and phased working all shape the price. So do site requirements such as inductions and permits.

Sending details for a quote

However big the job, these details speed things up:

  • Whether the building will be occupied during the work
  • A wide shot and a close-up of the area
  • Anything awkward about access or site hours
  • Drawings or a marked-up plan, if available

A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Send what you have, and we will arrange a site visit if anything is unclear.

Signs you need fire stopping in Lenham Heath

Some seals fail because the wrong product went in: expanding foam or a general-purpose sealant pushed into a gap to tidy it. It may look closed, but it has no tested fire performance in that position, so it has to come out.

Things that usually lead to an enquiry:

  • Fire-rated sealant that has cracked or shrunk back
  • Service penetrations left open after M&E works
  • Hidden openings found during inspections
  • Fire seals cut back for extra cables and never reinstated

Holiday works at schools like The Lenham School often leave service openings to seal before pupils return.

What your quote should include

  • Is the sealant right for the movement and the substrate?
  • Will CSCS-carded applicators be on site?
  • What the guarantee covers, and for how long
  • Their approach to joint depth and backing

Our contractor checklist

Should maintenance staff do it?

General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.

Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.

Questions we are asked in Lenham Heath

Do you seal service penetrations in hotels around Lenham Heath?

Yes, where the specification calls for fire-rated sealant. We match the product to the wall or floor and the services, and say if something other than sealant is needed.

Is Lenham Heath too small for you to travel to?

Not at all. Lenham Heath is within our area. London and every South East county are within our area. We plan jobs in smaller places so return trips are kept to a minimum.

Do you guarantee your work?

Yes. The 12-month guarantee covers our preparation and application, though not damage or work by other trades.

How do you deal with asbestos in old sealant?

The duty to manage asbestos sits with the building’s dutyholder, so for older buildings we ask for the asbestos register first. Work pauses if suspect material is found, until it has been tested.

How many days will you need on site?

It depends on the scope, but the work usually takes anything from one day to a planned run of visits, depending on the number of seals and the access. For bigger or phased jobs, we will set out a timescale with the quote.

Can you work to our specification?

Yes. The specification and the manufacturer’s installation guidance are what we work to.

When can the area be used after sealing?

We’ll confirm how long the chosen product needs to cure, and sign any area that should be left alone.

Why deal with it now?

An improvised seal can look finished while offering no tested performance. The fix is to remove it and reinstall to the detail, so it makes sense to get it right first time. Halls, stores and units around places like Lenham Heath may not be checked every day, so a failed joint can leak for a while before anyone sees it. Renewing joints in good time avoids the problem.

There’s no price list, because the scope varies so much from one building to the next. For a fixed figure, call for a quote and we will price your job on its own details.

What you get with us

  • Fully insured, including public liability cover
  • Specification-led, product-correct work
  • Old sealant cut out, never sealed over
  • CSCS-carded applicators

Take a look at what affects the cost and our accreditations and insurance.

Compartments and services around Lenham Heath

In England, Approved Document B covers fire stopping of openings and penetrations. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. What we install is set by the specification, and it goes in to the tested detail. Central London is about 41 miles from Lenham Heath. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls.

For a building such as Church of the Holy Trinity, new heating or data runs are the usual reason penetrations need sealing. Hotels such as Chilston Park Hotel (1.4 miles west of Lenham Heath) rely on fire-resisting walls between bedrooms and corridors, and refits that add services leave penetrations to seal where fire-rated sealant is specified.

Lenham Heath is about 8 miles north-west of Ashford, in Kent. We cover commercial sites throughout Lenham Heath, for single jobs and planned programmes alike. 931 places across Kent fall within our area, Lenham Heath among them. For work in that direction, see our London page.

If you need fire stopping in ME17, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. For a building on Lenham Forstal Road, Crabtree Lane and Rose Lane or nearby, send details and we will quote for service penetrations. Just outside Lenham Heath, we also work in Lenham Forstal (1 mile north-west), Charing Heath (1 mile south-east), Stonebridge Green (1 mile south), Leadingcross Green (2 miles north-west) and Lenham (2 miles north-west). Nearby towns on our patch include Maidstone (10 miles west), Ashford (8 miles south-east), Canterbury (15 miles east), Sittingbourne (9 miles north), Faversham (9 miles north-east) and Minster (14 miles north).

Landmarks near Lenham Heath

Around Lenham Heath, our work takes us to commercial buildings near The Red Lion Inn and the streets around them. For rail, the closest station is Lenham station, roughly 2 miles north-west. Nearby you will also find Coldbridge Castle (2.4 miles south-west).

Map of Lenham Heath © OpenStreetMap contributors

On site: what to expect

On arrival, we report to your site contact and complete whatever induction the building runs. Floors, finishes and fittings next to the joints are covered before any cutting starts, and the work normally takes a single visit for a short list of penetrations, or a phased programme for a whole building. Smaller jobs around Lenham Heath can be grouped with others nearby, which keeps travel down. You will have a fixed quote before work starts.

  1. First we go through the drawings, schedule or specification for the seals and raise any questions before we price.
  2. On site, each opening is checked against the tested detail it is meant to follow.
  3. Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
  4. We fit the backing the detail asks for, to the stated depth.
  5. Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
  6. Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.

Before we start on site

  • Arrange parking or a loading space
  • Tell us your opening times and when work is allowed
  • Let building users know which areas are affected

Ask for a quote

Tell us about the building, the joints and when you need the work done, and we’ll put a fixed quote together. To get it moving, speak to us on 01277 525 020 or send photos by email.

Get a quick quote

Read more

Accreditations

Trusted. Accredited. Insured.